import 'package:fedcampus/view/train_app.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  group('TrainApp Widget Tests', () {
    // 设置测试环境
    setUp(() {
      // 可以在这里添加测试前的准备工作
    });

    testWidgets('验证应用标题显示正确', (WidgetTester tester) async {
      await tester.pumpWidget(const MaterialApp(
        title: 'Fedcampus Flutter',
        home: TrainApp(),
      ));

      // 验证应用标题是否正确显示
      expect(find.text('Fedcampus Flutter'), findsOneWidget);
    });

    testWidgets('验证存在以"Logs"开头的文本组件', (WidgetTester tester) async {
      await tester.pumpWidget(const MaterialApp(
        title: 'Fedcampus Flutter',
        home: TrainApp(),
      ));

      // 验证存在以"Logs"开头的文本组件
      expect(
        find.byWidgetPredicate(
          (Widget widget) => widget is Text && widget.data?.startsWith('Logs') == true,
        ),
        findsOneWidget,
      );
    });

    testWidgets('验证日志列表是否正确加载', (WidgetTester tester) async {
      await tester.pumpWidget(const MaterialApp(
        title: 'Fedcampus Flutter',
        home: TrainApp(),
      ));
      
      // 等待异步操作完成（如果有）
      await tester.pumpAndSettle();

      // 验证是否存在日志列表项
      expect(find.byType(ListView), findsOneWidget);
      expect(find.text('日志项 1'), findsOneWidget); // 假设存在这个日志项
    });

    testWidgets('验证点击操作是否生效', (WidgetTester tester) async {
      await tester.pumpWidget(const MaterialApp(
        title: 'Fedcampus Flutter',
        home: TrainApp(),
      ));

      // 查找按钮并点击
      await tester.tap(find.text('刷新日志'));
      await tester.pump();

      // 验证点击后的效果
      expect(find.text('日志已刷新'), findsOneWidget);
    });
  });
}    